Trivia

Hybrid PC/MAC Version

When the game was ported to the Macintosh, it was released on a so-called "Hybrid Disc". A Hybrid Disc can be read by both a PC and a Mac, containing those respective computer's CD-ROM file systems. This disc contains audio tracks with the game's music, and can be played on any device which will play CD Audio. The music will only be heard in-game with the Macintosh version. PC-Only discs lack the CD Audio tracks.

Innovations

Warcraft was a game of many "firsts" in the RTS world. It was the first RTS game to support multiplayer capability, and the first to have multiple resource types to harvest.

Novels

In addition to a board game and Sword & Sorcery Studios' 2003 pen-and-paper RPG system, the Warcraft setting has yielded quite a number of novels. Pocket Books have published a handful of distinct titles:

Day of the Dragon (2001), by Richard A. Knaak, set between Warcraft II and III

Lord of the Clans (2001), by Christie Golden

The Last Guardian (2001), by Jeff Grubb

Of Blood and Honour (2001), an e-book by Warcraft developer Chris Metzen.

Two self-contained Warcraft trilogies have also been published. Richard A. Knaak's War of the Ancients trilogy features Azeroth's prehistory being subtly altered by visitors from its present:

The Well of Eternity (2004)

The Demon Soul (2004)

The Sundering (2005)

He has also written the Sunwell Trilogy, graphic works in the Korean "manhwa" tradition, illustrated by Jae-Hwan Kim:

Dragon Hunt (2005)

Shadows of Ice (2006)

Ghostlands (2007)

References

If you repeatedly click on any Orcish unit he will eventually say "zug zug!" A little known fact is that in the 1981 film Cavemen "zug zug" is caveman-speak for sexual intercourse.

The red banner visible during orc briefings is the same as banner of Sarlac in the game Blackthorne, also developed by Blizzard.
You can see it in this screenshot.

Warhammer

In the beginning stages of development Blizzard did consider using the Warhammer license for Warcraft, and this was even pushed for by Ayman Adham to give the game brand recognition. However, after their terrible experiences with DC Comics during the development of Superman and Justice League games, the rest of the staff decided to instead create an original property.